1. Shake Well.2. Use 2 soft, lint-free cloths (do not use paper towels or anything that could scratch plastic glass).3. Hold the aerosol can in an upright position 4-6 inches from surface to be cleaned and spray to cover outside edges and then diagonally from corner to corner.4. Use one cloth to wipe dirt from surface and then polish dry with a second clean cloth.Note: For computers, spray on a soft cloth. Never spray an aerosol directly on computer or monitor.